Sink



Jan. 7, 1941. w, THUMM 2,228,186

SINK

Filed May 9, 1940 'JEafleZZZ OJ z a g Patented Jan. 7, 1941 UNITED STATES PATENT OFFICE 3 Claims.

My invention relates to a sink and drain board combination and means and methods for assembling the same.

Among the objects of my invention is to pro- 5 vide means and method for quickly and removably attaching a sink to a drain board; to supply attachment means which will permit the removal of a broken or cracked sink bowl and its replacement by a new sink bowl without the destruction 10 or alteration of the drain board; to create attachment means which will also act as a seal, and such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by my invention.

15 While I have shown in the accompanying drawing a preferred form of my invention, yet I desire it understood that the same is susceptible of modification and change without departing from the spirit of my invention.

9- Referring to the drawing Fig. 1 is a perspective view of my sink; Fig. 2 is a bottom plan view of the same; Fig. 3 is a detailed sectional view of my sink as shown on line 3-3 of Fig. 1; Fig. 4 is a plan view of one of my clamping members 25 in position; Fig. 5 is a perspective view of one of my clamping members, and Fig. 6 is a perspective view of a portion of my trim and rim member.

The embodiment selected to illustrate my invention comprises means for removably attaching the rim II of a sink bowl to a, drain board II. My drain board "I has a base l2 preferably made of wood, and a surface |3 preferably made of linoleum or other suitable composition attached to the upper surface of said base I2. An

35 outer moulding l4 preferably of stainless steel is attached to the outer edges of the drain board I0 and is bent inwardly against its top and bottom surfaces.

In order to quickly and removably attach the 40 rim H of the sink bowl to the drain board I0 I provide a substantially T shaped sink rim and drain board trim member of aluminum or any suitable metal. My member l5 has a vertical portion Ii adapted to lie against the inner edge 45 I I of the drain board I. At the upper end of vertical portion IS an outer flange 40 extends substantially at right angles therefrom and lies within a groove l8 rabbetted from the surface |3 of the drain board l0, so as to form a flush and -50 water tight surface therewith, and held so by a plurality of spaced screws l9 extending from the vertical portion l6 into the wood base I2 of drain board II. The lower end of the vertical portion It is also thereby held flush with the bottom of 55 the base l2 'of the drain board III by screws l9.

At the upper end of the vertical portion I6 of member IS an inner flange 4| begins substantially at right angles therefrom and has a tapered surface 20 leading from the end of its inner top portion downwardly to form a feather edge 2| at its lower inner end. The feather edge 2| is adapted to contact the rim ll of the sink to form a seal therewith. In the space 22 between the feather edge 2| and the vertical portion I5 I 4 provide a supply of mastic or other suitable filler, which forms with the feather edge 2| 9. perfect water-tight seal.

In order to attach the sink to the member I5 I provide a plurality of spaced fastening constructions. Each of said fastening constructions comprises an elongated U or channel-shaped clamping member 24 having a central portion 25 with leg 26 depending from one side being longer than leg 21 on the other side. Substantially centrally positioned in central portion 25 is an aperture 28 and substantially centrally positioned in longer leg 26 is slot 29.

The clamping member 24 is positioned with the shorter leg 21 contacting the under portion of the rim H, and with the longer leg 26 lying with its bottom end on inner flange 4| of member I5. This spaces the outer edge of rim I I from vertical portion l6 of member I 5, and creates a leverage so that shorter leg 21 exerts greater upward pressure on the under portion of rim H, forcing the upper portion of the rim more tightly against feather edge 2|.

A threaded bolt 3|! is bent substantially at right gigles to form a shorter leg 3| and a longer leg The longer leg 32 is inserted through an aperture 33 in vertical portion it of member l5 and into the base |2. The clamping member 24 is placed against bolt 3|) with slot 29 over longer leg 32 and with shorter leg 3| extending through aperture 28 in central portion 25. A threaded nut 34 on shorter leg 3| is turned until the nut 34 rests tight against central portion 25. Upon upward pressure of nut 34 on shorter leg 3|, longer leg 32 is moved downwardly at an angle to a more snug engagement within base l2. This in turn moves shorter leg 3| from its original vertical position to a slight angular position so that the threads of shorter leg 3| bear against central portion 25 to one side of aperture 28 and prevent accidental downward movement of shorter leg 3|.

Having thus described my invention, I claim:

1. In a construction for removably attaching a sink bowl to a drain board, a substantially U shaped clamping member having an opening in its central portion and a slot in its outer leg portion, a threaded bolt having its outer end extending at right angles, through said slot in said clamping member and into said drain board, the inner end of said threaded bolt extending through said opening in said clamping member,

said clamping member contacting the rim of said sink bowl, a nut threaded to engage the inner end or the'bolt below the opening in the clamping member, said nut adapted when tightened to apply downward pressure on the outer end of the bolt for angular contact within the drain board. said angular movement of said outer end of the bolt also causing angular movement of the inner end of the bolt so that the threads on the inner end of the bolt will engage the clamping member to the side of the opening and prevent downward movement of the bolt.

2 In a construction for removably attaching a sink bowl to a drain board, a T shaped member with its vertical portion attached to the inner edge of said drain board, and with one of its top portions having a feather edge contacting the upper inner surface of the rim of the sink bowl, said feather edge leaving a space between and above its lower extent and the vertical portion of the T shaped member and the upper surface of the rim, and a mastic-like filler in said space, said feather edge contact and said filler forming a water tight seal between the drain board and the sink bowl.

3. In a construction for removably attaching a sinkbowltoadrainboardapluralityofspaced fastening members, each of said fastening members being U shaped with a shorter inner leg, a longer outer leg anda central connecting portion, the inner shorter leg contacting the under sm'i'ace of the rim or the sink bowl, each of said fastening members having an aperture in its central connecting portion and a slot in its longer leg, a-pllirality of threaded bolts, each bolt bent at right angles with its outer end extending through the slot ofone of the fastening members into the inner edge of the drain board and its inner end extending through the aperture of one of the fastening members, a plurality of nuts, each nut threaded to engage the inner end of one 01' the bolts below the opening in one or the fastening members, each of said nuts adapted when tightened to apply downward pressure on the outer end of its bolt for angular contact within the drain board, said angular movement of said outer end of each bolt also causing angular movement of the inner end of the bolt so that the threads on the inner end of the bolt will engage the fastening member to the side of the opening and prevent downward movement of the bolt.

WILLIAMF. THUMM. 

